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(layers branch) Adjust tool implemented. Left click and drag to move a single layer, Right-click and drag to move everything.

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git-svn-id: svn://pulkomandy.tk/GrafX2/branches/layers@1041 416bcca6-2ee7-4201-b75f-2eb2f807beb1
This commit is contained in:
Yves Rizoud
2009-09-22 22:55:02 +00:00
parent cedb706326
commit 78e59e6127
7 changed files with 88 additions and 33 deletions
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32
misc.c
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@@ -685,33 +685,33 @@ void Slider_timer(byte speed)
} while (Mouse_K == original_mouse_k && SDL_GetTicks()<end);
}
void Scroll_picture(short x_offset,short y_offset)
void Scroll_picture(byte * main_src, byte * main_dest, short x_offset,short y_offset)
{
byte* esi = Screen_backup; //source de la copie
byte* edi = Main_screen + y_offset * Main_image_width + x_offset;
const word ax = Main_image_width - x_offset; // Nombre de pixels à copier à droite
word dx;
for(dx = Main_image_height - y_offset;dx>0;dx--)
byte* src = main_src; //source de la copie
byte* dest = main_dest + y_offset * Main_image_width + x_offset;
const word length = Main_image_width - x_offset; // Nombre de pixels à copier à droite
word y;
for(y = Main_image_height - y_offset;y>0;y--)
{
// Pour chaque ligne
memcpy(edi,esi,ax);
memcpy(edi - x_offset,esi+ax,x_offset);
memcpy(dest,src,length);
memcpy(dest - x_offset,src+length,x_offset);
// On passe à la ligne suivante
edi += Main_image_width;
esi += Main_image_width;
dest += Main_image_width;
src += Main_image_width;
}
// On vient de faire le traitement pour otutes les lignes au-dessous de y_offset
// Maintenant on traite celles au dessus
edi = x_offset + Main_screen;
for(dx = y_offset;dx>0;dx--)
dest = x_offset + main_dest;
for(y = y_offset;y>0;y--)
{
memcpy(edi,esi,ax);
memcpy(edi - x_offset,esi+ax,x_offset);
memcpy(dest,src,length);
memcpy(dest - x_offset,src+length,x_offset);
edi += Main_image_width;
esi += Main_image_width;
dest += Main_image_width;
src += Main_image_width;
}
Update_rect(0,0,0,0);